Issues
| 2012 | January (2,7 MB) | April (2,4 MB) | | |
| 2011 | January (3,6 MB) | April (2,2 MB) | July (3,2 MB) | October (3,1 MB) |
| 2010 | January (3,4 MB) | April (3,4 MB) | July (3,1 MB) | October (2,6 MB) |
| 2009 | January (2,2 MB) | April (2,4 MB) | July (2 MB) | October (2,2 MB) |
| 2008 | January (3 MB) | April (2,8 MB) | July (2 MB) | October (2,7 MB) |
| 2007 | January (1,7 MB) | April (1,7 MB) | July (2,8 MB) | October (2,6 MB) |
| 2006 | January (627 KB) | April (3 MB) | July (869 KB) | October (2,9 MB) |
| 2005 | January | April | July | October |
| 2004 | January | April | July | October |
| 2003 | January | April | July | October |
| 2002 | January | April | July | October |
| 2001 | January | April | July | October |
| 2000 | January | April | July | October |
| 1999 | | April | July | October |
| | | | |
